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SiriusHardware · 17th Aug 2018, 6:57 pm

Pictures would be good. Someone may have a version of the same card which has not had the numbers rubbed off, if it is a general purpose I/O card.

If the main device is a microprocessor as you think it may be then I hope the card includes a discrete code memory device such as an eprom, because if not the microprocessor may have its application code buried within it. If that's the case then buying a replacement chip will not help you.

Being optimistic, I would suggest that the devices which are most likely to have failed are those which connect the card to the outside world, rather than the processor itself.

17th Aug 2018, 6:57 pm	#2
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,575	Re: Interface card on 486 processor Pictures would be good. Someone may have a version of the same card which has not had the numbers rubbed off, if it is a general purpose I/O card. If the main device is a microprocessor as you think it may be then I hope the card includes a discrete code memory device such as an eprom, because if not the microprocessor may have its application code buried within it. If that's the case then buying a replacement chip will not help you. Being optimistic, I would suggest that the devices which are most likely to have failed are those which connect the card to the outside world, rather than the processor itself.